public AstNode Parse(CompilerContext context, SourceFile source)
{
Scanner.Prepare(context, source);
context.Tokens.Clear();
//If we need to match braces then we need to ensure that we have BraceMatchFilter
if (context.OptionIsSet(CompilerOptions.MatchBraces))
EnsureBraceMatchFilter();
IEnumerable<Token> tokenStream = Scanner.BeginScan();
//chain all token filters
foreach (TokenFilter filter in Grammar.TokenFilters) {
tokenStream = filter.BeginFiltering(context, tokenStream);
}
//finally, parser takes token stream and produces root Ast node
int start = Environment.TickCount;
AstNode rootNode = Parser.Parse(context, tokenStream);
_compileTime = Environment.TickCount - start;
if (context.Errors.Count > 0)
context.Errors.Sort(SyntaxErrorList.ByLocation);
if (rootNode != null && context.OptionIsSet(CompilerOptions.AnalyzeCode))
AnalyzeCode(rootNode, context);
return rootNode;
}
